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Lightweight concrete, raw material proportion and preparation method of lightweight concrete

A technology for lightweight concrete and raw materials, which is applied in the ratio of raw materials and its preparation, in the field of lightweight concrete, can solve the problems of high grinding cost of fine orthopedics, expensive cement and fine orthopedics, etc., and achieves low price, easy operation, and high output. big effect

Inactive Publication Date: 2018-07-27
四川汇源钢建装配建筑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the price of cement and fine bone is relatively expensive, and the cost of grinding fine bone is relatively high. It is a difficult problem to reduce the cost and reduce the ratio of cement and fine bone while ensuring the compressive and flexural resistance of concrete.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]Grind the water slag until the specific surface area is 360m2 / kg, and the residue on the 3mm square hole sieve is ≤10%. Weigh 150.33kg of cement, 195.07kg of rock particles, 149.88kg of ceramsite, 100.33kg of water slag, 10.51kg of fly ash, 3.5kg of water reducing agent, 0.5kg of early strength agent, 0.5kg of activator, and 0.0.5kg of cellulose , 79.8kg of water, first pour 2 / 3 of the water into the mortar mixing pot, then add the raw materials in turn, then start stirring, and gradually add the modified melamine water-reduced solution dissolved in the remaining 1 / 3 of the water during the stirring process agent. Foam the rosin soap foaming agent at a ratio of 1:30 to dry foam, add 2.15 kg of foam, and mix the foam and slurry evenly.

[0043] According to the provisions of GB / T11971-1997, the cube compressive strength test and the dry apparent density test are carried out according to the provisions of GB / T11970-1997. The strength of concrete with a bulk density of 112...

Embodiment 2

[0045] Grind the water slag until the specific surface area is 360m2 / kg, and the residue on the 3mm square hole sieve is ≤10%. Weigh 140.33kg of cement, 185.07kg of rock particles, 144.88kg of ceramsite, 105.33kg of water slag, 15.51kg of fly ash, 3.5kg of water reducing agent, 0.5kg of early strength agent, 1.5kg of activator, 0.5kg of vitamin, 76.2kg of water, first pour 2 / 3 of the water into the mortar mixing pot, then add the raw materials in turn, then start stirring, and gradually add the modified melamine water reducer dissolved in the remaining 1 / 3 of the water during the stirring process . Foam the rosin soap foaming agent at a ratio of 1:30 to dry foam, add 1.15 kg of foam, and mix the foam and slurry evenly.

[0046] According to the provisions of GB / T11971-1997, the cube compressive strength test and the dry apparent density test are carried out according to the provisions of GB / T11970-1997. The strength of concrete with a bulk density of 1403kg / m3 is 23.2MPa.

Embodiment 3

[0048] Grind the water slag until the specific surface area is 390m2 / kg, and the residue on the 3mm square hole sieve is ≤10%. Weigh 135.53kg of cement, 180.47kg of rock particles, 138.86kg of ceramsite, 110.34Kg of water slag, 20.51kg of fly ash, 2.5kg of water reducing agent, 0.5kg of early strength agent, 1.5kg of activator, 0.5kg of vitamin, 72.2kg of water, first pour 2 / 3 of the water into the mortar mixing pot, then add each raw material in turn, then start stirring, and gradually add the modified melamine water reducer dissolved in the remaining 1 / 3 of the water during the stirring process . Foam the rosin soap foaming agent at a ratio of 1:30 to dry foam, add 2.35 kg of foam, and mix the foam and slurry evenly.

[0049] According to the provisions of GB / T11971-1997, the cube compressive strength test and the dry apparent density test are carried out according to the provisions of GB / T11970-1997. The strength of concrete with a bulk density of 1357kg / m3 is 13.2MPa.

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Abstract

The invention provides lightweight concrete, a raw material proportion and a preparation method of the lightweight concrete and belongs to the technical field of lightweight construction materials andpreparation thereof. The lightweight concrete comprises 100-150 parts of cement, 150-200 parts of coarse aggregates, 100-150 parts of fine aggregates, 100-150 parts of granulating slag, 50-80 parts of water, 10-25 parts of admixture and 0.1-8 parts of cement additives. The preparation method includes: mixing the materials above, adding 0.1-5 parts of foaming material, and well mixing, wherein thefoaming material is a dry foaming material obtained by mixing a commercially-available foaming agent with water according to the mass ratio of (1-3):30 and performing pre-foaming; pouring foamed slurry into a mould, performing natural curing or steam curing for 10-30 hours, and removing the mould to obtain the lightweight concrete. The lightweight concrete is good in water penetration resistance,capable of being prepared into waterproof concrete with good waterproof performance and good in heat resistance.

Description

technical field [0001] The invention relates to the technical field of lightweight building materials and their preparation, in particular to a lightweight concrete, raw material proportioning and a preparation method thereof. Background technique [0002] With the improvement of people's awareness of the environment and resources and the country's wall reform policy, especially the requirements of building energy conservation, lightweight concrete products have widely replaced traditional clay solid bricks and solid concrete products. Lightweight concrete products not only do not produce waste water, waste gas and other pollutants in the production process; the main raw materials are solid industrial waste; and have the characteristics of light weight, good thermal insulation performance, sound insulation and noise reduction, and good fire resistance. , The priority industry during the "Eleventh Five-Year Plan" period. [0003] The basic raw materials of lightweight concre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/10C04B111/40C04B111/52
CPCC04B28/04C04B2111/40C04B2111/52C04B18/027C04B14/02C04B18/141C04B18/08C04B24/223C04B2103/12C04B22/064C04B22/143C04B24/34C04B24/383C04B38/10
Inventor 蔡建利汤春林王杜槟林永刚陈启超游义才王元彤曹立荣刘承周晓龙
Owner 四川汇源钢建装配建筑有限公司